Based on statistical properties, it was proposed to use the NL model rather than theMNL model.
The optimal model specification is presented in Table VIII. The sign and t-statistic value of the travel cost
are an a priori expectation. It implies that as the cost of the travel increases, the probability of choosing
the specific access mode is reduced. For travel time, two different parameters are estimated,
one parameter for the walking access mode and the other parameter for all other access modes.
From the magnitudes of these parameters, it can be concluded that commuters are more sensitive to walk time
and wait time than in-vehicle travel time (IVTT). This implies that people are more willing to spend
more time in traveling on board rather than in waiting at access mode stations and walking to the access
modes. From the values obtained, it can be seen that commuters are willing to walk to Nonthaburi pier